Electromyography
Alternate Names : EMG
What do the test results mean?
Disorders or conditions that cause abnormal results include:
polymyositis, or inflammation of the skeletal muscle tissue
muscular dystrophy, a group of inherited muscle disorders that cause muscle weakness
myopathy, which means any disease or abnormal condition of muscles
traumatic injury
hyperadrenalism, or increased secretion from the adrenal gland
hypothyroidism, or decreased secretion from the thyroid gland
carpal tunnel syndrome, which is pain or numbness that affects the hand
sarcoidosis, a disease in which abnormal collections of inflammatory cells form in many organs of the body
Guillain-Barre syndrome, an autoimmune disease in which the myelin sheathes of nerves are destroyed, causing a loss of motor function
myasthenia gravis, an autoimmune disease that causes muscle weakness
spinal cord injury or disease
multiple sclerosis, an autoimmune disorder of the central nervous system
diabetic neuropathy, which causes a painful tingling or burning sensation in the hands and feet
amyotrophic lateral sclerosis, a progressive disease marked by muscle weakness
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